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- """Colorize a mesh cell by clicking on it"""
- from vedo import Mesh, Plotter, dataurl
- # Define the callback function to change the color of the clicked cell to red
- def func(evt):
- msh = evt.object
- if not msh:
- return
- pt = evt.picked3d
- idcell = msh.closest_point(pt, return_cell_id=True)
- m.cellcolors[idcell] = [255,0,0,200] #RGBA
- # Load a 3D mesh of a panther from a file and set its color to blue
- m = Mesh(dataurl + "panther.stl").c("blue7")
- # Make the mesh opaque and set its line width to 1
- m.force_opaque().linewidth(1)
- # Create a Plotter object and add the callback function to it
- plt = Plotter()
- plt.add_callback("mouse click", func)
- # Display the mesh with the Plotter object and the docstring
- plt.show(m, __doc__, axes=1).close()
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